Super Safety Design to ensure over-voltage,over-temperature,over-current and short-circuit ect.....
  Power Adapter: AC:90V-240V DC: 12V-24V
  charging time: 1pcs rechargable battery :about 45minutes to 1 hour;2 - 4pcs rechargable battery :about 1.5 hours to 4hours
  Auto-recoginized defective rechargable battery and activate over-discharge rechargable battery 
  System auto-check function Independent MCU charging control and dual color LED 
  comply with national safety standard 
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